2005 txc air ecc

2005 - TXC Air ECC

Technical instructions

2005 - TXC Air ECC

Exploded view - TXC Air ECC 60

Rif. Code

Quantity

1 EXR FLC097-022

2 549072AD

3 701248

4 528005

5 701249

6 520362

7 549077AD

12 533315

13 523318

14 528269

19 5321213

20 TXC DECALS 05

21 524127>A

22 556557

23 5181181

24 5141131/C

25 522417

26 516087>A

27 509139

28 523315

29 512102

30 703714

31 521142IW>A

33 528223

TXC Air ECC 60 - Oil levels

Position

Oil type

Quantity (cc)

Right fork leg SAE 7,5 - 550013

100

Left fork leg

SAE 7,5 - 550013

100

2005 - TXC Air ECC

Spare part list - TXC Air ECC 60

Rif.

Code

Description

Q.ty in the
model

EXR FLC097-022

CROWN+STANCH+STEM TXC 2005

549072AD

ALUMINUM BLACK KNOB

701248

TXC PLUG UNIT- AIR

528005

O-RING 2081

701249

ECC PLUG UNIT- TXC

520362

SCREW

549077AD

ETA/ECC BLACK ALUMINUM KNOB 04

533315

DUST SEAL DIA.28

523318

STOP RING

528269

OIL SEAL DIA.28

5321213

TXC MONOLITE

TXC DECALS 05

LH+RH LABELS- TXC 2005

524127>A

PISTON RING

556557

INNER ROD

5181181

PRELOAD SLEEVE 20MM LONG

5141131/C
(replaces 850272/C)

REBOUND SPRING KIT

522417

WASHER

516087>A

VALVE

509139

FERRULE

523315

STOP RING

512102

FOOT BUFFER

703714

TXC 2004- ECC CARTRIDGE TR.60

521142IW>A

NUT

528223

O-RING

2005 - TXC Air ECC

Exploded view - TXC Air ECC 80

Rif. Code

Quantity

1 EXR FLC097-022

2 549072AD

3 701248

4 528005

5 701249

6 520362

7 549077AD

12 533315

13 523318

14 528269

19 5321213

20 TXC DECALS 05

21 524127>A

22 556557

24 5141131/C

25 522417

26 516087>A

27 509139

28 523315

29 512102

30 703713

31 521142IW>A

33 528223

TXC Air ECC 80 - Oil levels

Position

Oil type

Quantity (cc)

Right fork leg SAE 7,5 - 550013

100

Left fork leg

SAE 7,5 - 550013

100

2005 - TXC Air ECC

Spare part list - TXC Air ECC 80

Rif.

Code

Description

Q.ty in the
model

EXR FLC097-022

CROWN+STANCH+STEM TXC 2005

549072AD

ALUMINUM BLACK KNOB

701248

TXC PLUG UNIT- AIR

528005

O-RING 2081

701249

ECC PLUG UNIT- TXC

520362

SCREW

549077AD

ETA/ECC BLACK ALUMINUM KNOB 04

533315

DUST SEAL DIA.28

523318

STOP RING

528269

OIL SEAL DIA.28

5321213

TXC MONOLITE

TXC DECALS 05

LH+RH LABELS- TXC 2005

524127>A

PISTON RING

556557

INNER ROD

5141131/C
(replaces 850272/C)

REBOUND SPRING KIT

522417

WASHER

516087>A

VALVE

509139

FERRULE

523315

STOP RING

512102

FOOT BUFFER

703713

TXC 2004- ECC CARTRIDGE TR.80

521142IW>A

NUT

528223

O-RING

2005 - TXC Air ECC

Technical characteristics: Technical characteristics

Single-crown fork with ø 28mm legs.

Available travels: 60 mm, 80 mm.

Right fork leg damping element: air.

Left fork leg damping element: air.

Right fork leg damping system: SSV pumping element with internal rebound adjustment.

Left fork leg damping system: ECC-cartridge.

The stanchion tubes are pressed into the crown.

New sliding system to improve stiffness and operation.

Lubrication and cooling of the parts subject to friction with a specially formulated oil.

Steer tube: steel or (optional) aluminium, 1-1/8", threadless.

Crown: BAM® aluminium alloy forged and CNC machined.

Stanchions: anodised aluminium.

One-piece assembly: made of magnesium alloy cast and CNC machined for lighter weight and more stiffness.

Sliding bushings: made of friction-free and wear-free material.

Seals: computer designed oil seals that guarantee maximum seal in any condition.

Oil: specially formulated oil that prevents foam and keeps the viscosity unchanged while offering high performance; free from static friction.

Dropout type: standard.

Disk brake mount: XC International Standard for 6" disk.

V-Brake fit: fixed type.

Max wheel size: 2.0" x 28".

BAM® : Bomber Aerospace Material: special alloy coming from the aerospace industry.

2005 - TXC Air ECC

Warnings: Instructions for use

MARZOCCHI forks are based on an advanced technology coming from the company’s years long experience in the professional mountain bike
industry.
For the best results, we recommend inspecting and cleaning the area below the dust seal and the stanchion tube after every use and lubricating the
parts with some silicone oil.
MARZOCCHI forks usually offer the best performances since the very first rides. Notwithstanding this, a short running-in period may be necessary
(5-10 hours) to adjust the internal couplings. This precaution will lengthen your fork’s life and guarantee its best performances.
We recommend changing the oil at least every 100 hours.
The forks with a polished finish must be treated periodically with polishing paste to keep the exterior shining like new.

Warnings: General safety rules

After disassembling the forks, always use new, original Marzocchi seals when reassembling.
To tighten two bolts or nuts that are near each other, always follow the sequence 1-2-1, and tighten to the required tightening torque.
Before reassembly, wash all new and old components and dry them with some compressed air, making sure there are neither breaks nor burrs.
Never use flammable or corrosive solvents when cleaning the forks, as these could damage the fork’s seals. If you must use a solvent, use
biodegradable detergents that are not corrosive, non-flammable, or have a high flash point.
Before reassembling, always lubricate those components that are in contact with the fork’s oil.
If you are planning not to use your forks for a long period of time, always lubricate those components that are in contact with the fork’s oil.
Always collect and keep any lubricants, solvents, or detergents, which are not completely biodegradable in the environment. These materials should
be kept in appropriate containers, and disposed of according to local laws.
Always grease the seal lips before reassembling.
All of the components of Marzocchi forks require the use of metric tools. Use only metric tools. Imperial (US) tools may have similar sizes, but can
damage the bolts, making them impossible to loosen or tighten.
When using a screwdriver to assemble or disassemble metal stop rings, O-rings, sliding bushings, or seal segments, avoid scratching or cutting the
components with the screwdriver tip.
Do not carry out any maintenance and / or adjustment operations that are not explained in this manual.
Only use original Marzocchi spare parts.
Before servicing the fork, we recommend washing the fork thoroughly.
Work in a clean, organized, and well-lit place. If possible, avoid servicing your forks outdoors.
Carefully check to see that your work area is free of dust and metal shavings from any component of the forks.
Never modify your fork in any way.

Warnings: Fitting the fork onto the frame

The fork is supplied with “A-Head Set” steer tube to be cut to size according to frame being used.
Fitting the fork onto the bike frame is a very delicate operation that must be carried out at one of our service centres only.
The assembling on the frame and the adjustment of the steer tube must be carried out following the instructions of the steering set manufacturer.
A wrong installation can be dangerous for the rider.
Marzocchi does not guarantee the assembly and accepts no liability for damage and/or accidents arising from a wrong
installation.
The steer tube must be pressed into the crown; its replacement must be carried out by one of our service centres using the adequate tools.
A wrong installation of the steer tube into the crown may cause the rider to lose the control of the bike and lead to serious
personal injury.

Warnings: Installing the disk brake

Installing the brake system is a delicate and critical operation that must be carried out by an authorized Marzocchi Service Center.
Marzocchi is not responsible for the installation and accepts no liability for damage and/or accidents arising from this operation.
Improper installation of a disk brake system can overstress the caliper mountings, which may cause the caliper mountings to break, resulting in loss
of control of the bicycle, an accident, personal injury, or death. Be sure that the brake system installation is also performed in strict compliance with
the instructions provided by the brake system manufacturer.
Improper installation can result in an accident, personal injury, or death.
Use only brake systems that comply with the forks specifications.

The brake cable must never touch the crown and stanchions.

Warnings: Installing the V-brake

Installing the brake system is a very delicate operation that must be carried out at our specialised service centres only.
Marzocchi does not guarantee the installation and accepts no liability for damage and/or accidents arising from a wrong installation.
Improper installation of the disk brake system can overstress the caliper mountings, which may break. The installation of the
brake system must be carried out following the instructions of the brake system manufacturer. Improper installation can be
dangerous for the rider.
Use only brake systems in accordance with the fork specifications.

Warnings: Assembling the wheel

2005 - TXC Air ECC

Install the wheel following the instructions of the manufacturer.
For a correct operation of the fork, install the wheel and proceed with the following checks:
Check the correct fork-wheel alignment by fully compressing the fork a few times. The wheel should not come into contact with any parts of the
fork.
Lift the front wheel above the ground; turn the wheel a few times to verify the correct alignment and the distance from the disk brake or the V-
brake pads. Read the instructions of the brake system manufacturer for the correct specifications.

2005 - TXC Air ECC

Dismantling: Removing the top caps

Put the fork in the vice in vertical position, fixing it by the dropouts.

Dismantling: Removing the top right cap

Remove the protection cap (1).

Using a small pin screwdriver, blow the air off the fork leg, pushing on the air valve.
Fully unscrew lock cap (2) with a 21mm socket spanner.
Remove lock cap (2).

Dismantling: Removing the top left cap

With a 2mm Allen wrench loosen screw (4).
Remove first screw (4), then the ECC control knob (5).

Fully unscrew lock cap (2) using a 21mm socket spanner.
Lift out lock cap (2).

2005 - TXC Air ECC

Holding locknut (6) with the 10mm spanner, use the 21mm spanner to unscrew lock cap (2) completely.

Remove lock cap (2).

Dismantling: Draining the oil

Free the fork from the vice and tip it into a container of a suitable size to drain the oil; compress the fork
a few times to help the oil flow out.
Do not pour used oils on the ground.

Dismantling: Breaking down the steering crown unit / arch-slider assembly

Use the special tools to remove the pumping elements. Do not, at any times, use other tools.

With the special spanner (A) unscrew the pumping element of the right leg.
During this operation, make sure that the hexagon of spanner (A) perfectly fits into the
hexagon groove at the top of the pumping element.

With the special spanner, fully unscrew the complete ECC cartridge of the left leg.
During this operation, make sure that the spanner claws perfectly fit the grooves at the

2005 - TXC Air ECC

bottom of the cartridge.
Pull the complete ECC cartridge (9) off the left leg.

Pull the crown-stanchion unit (3) off the arch-slider assembly (4).

Dismantling: Dismantling the right pumping element and valve

Remove the bottom pad (1).

Using the special round-nose pliers, remove stop ring (2).

Pull out the pumping element (3) complete with rebound spring and valve.

2005 - TXC Air ECC

Remove bushing (4), valve (5) and three-point ring (6) from the pumping element.
Remove the preload tube (9) (

only for models with 60mm travel

Remove the rebound spring (7).

If the piston segment (8) is damaged, you can prize it off with a small flat-tip screwdriver.

Dismantling: Dismantling the ECC cartridge

Loosen and remove nut (1) with a 10mm fixed spanner.

The ECC cartridge (5) has been sealed through machining and cannot be overhauled. In the
case of faults or a malfunctioning, this cartridge must be replaced.

Dismantling: Removing the seals

Prize the dust seal (1) off its seat with a small flat-tip screwdriver.
Take great care not to damage the internal surfaces of the one-piece assembly while

2005 - TXC Air ECC

removing the dust seal.

With the same screwdriver, prize off the metal stop ring (2).
Take great care not to damage the internal surfaces of the one-piece assembly while
removing the stop ring.

Protect the upper part of the slider with the special tool (A).
With a screwdriver, prize off the sealing ring (3).
Remove the sealing ring (3).
Take great care not to damage the internal surfaces of the one-piece assembly while
removing the sealing ring.

The old sealing rings and dust seals must not be used again.

Dismantling: Removing the guide bushes

Use the special extractor to remove the guide bushes. Do not use othertools.
Remove first the top bushes, then the bottom bushes.
Insert the extractor in the one-piece assembly from the side of washer (B) as shown.
The slot in the rod lets the extraction washer swing inside the rod itself.
The slot in the extractor rod will let the washer pass underneath the bush to be extracted.

Pull the extractor rod so that the upper face of the washer stops against the lower face of the guide bush.
Insert the aluminium bush (A) in the seat of the sealing ring.
While holding the main rod in position, the aluminium bush will drive the guide bushes during extraction.
Using striker (D) knock out and extract the guide bush (1).
Remove the guide bush (1) from the extractor.
Repeat the steps above to remove the bottom guide bush.

2005 - TXC Air ECC

Assembling: Assembling the guide bushes

Insert the guide bushes using the special introducers (short type for the top bush and long
type for the bottom bush). Do not use other tools.
Fit first the bottom bushes, then the top bushes.
Using the long introducer (A) fit the bottom bush (1).
Using a hammer knock the introducer (A) into the arch-slider assembly.

Using the short introducer (B) fit the top bush (2).

Assembling: Assembling the seals

Smear the dust seal and the sealing ring with some grease.
Insert the sealing ring (3) in its seat with the special introducer (A).
Using a hammer, knock in introducer (A) and drive the sealing ring home into the arch-slider assembly.

2005 - TXC Air ECC

Using a small flat-tip screwdriver, fit the stop ring (2) and check that it fits perfectly into its groove.
Take great care not to damage the internal surfaces of the one-piece assembly when fitting
the stop ring.
The dust seals shall be refitted when reassembling the crown-stanchion unit / arch-slider assembly.

Assembling:

During the assembly of the pumping unit, strictly obey the instructions below.
Do not, at any times, reverse the position of the pumping elements in the fork legs (if you are unsure about anything, please refer
to the relevant exploded view).

The pumping element operating the hydraulic rebound braking (that can be recognised by the segment) must be installed in the
right leg.

Assembling: Assembling the right pumping element and valve

Replace the segment (8) of the pumping element, if necessary.

Insert the preload tube (9) (

only for models with 60mm travel

) and the rebound spring (7) in the piston

rod.

Assemble the valve unit in this order: bushing (4),valve (5), three-point ring (6), and check that the parts
are oriented as shown.

2005 - TXC Air ECC

Insert the pre-assembled valve in the piston rod from the three-point ring side as shown.
Insert the valve and the pumping element (3) into the stanchion.

Take great care not to damage the segment and if necessary use a small flat-tip screwdriver to help the piston of the pumping
element into the stanchion.

Using the special round-nose pliers, mount the stop ring (2) and check it fits perfectly into its groove.

Fit the bottom pad (1) to the pumping element rod.

Assembling: Assembling the ECC cartridge

Screw down nut (1) without tightening.

2005 - TXC Air ECC

Assembling: Reassembling the steering crown unit / arch-slider assembly

A special spanner shall be used to assemble the pumping elements. Do not, at any times, use other tools.

A special spanner shall be used to assemble the bottom nuts. Do not, at any times, use other
tools.
Fit both dust seals (11) to the stanchions.

Insert the crown-stanchion unit (3) in the arch-slider assembly (4).

Screw down the pumping element of the right fork leg to the recommended tightening torque (10 Nm ±
1) using the special spanner (A).
During this operation, make sure that the hexagon of spanner (A) fits perfectly into the
hexagonal groove at the top of the pumping element.

Fit the complete ECC cartridge (9) in the left leg.
With the special spanner, tighten the ECC cartridge (9) to the recommended tightening torque (10 Nm ±
1).
During this operation, make sure that the spanner claws perfectly fit into the grooves at the
bottom of the cartridge.

2005 - TXC Air ECC

Using introducer (A) insert the dust seals (11) in their seats.

Assembling: Filling with oil

Block the fork in the vice, in perfectly vertical position.

Lower the crown-stanchion unit on the arch-slider assembly.

In a graduated recipient, prepare the quantity of oil to pour into the fork leg (see table).
Pour roughly 1/3 of the oil required into each stanchion, then pump the fork a few times to eliminate any
traces of air.
Pour the rest of oil in.

A lower or higher volume or a type of oil other than the one recommended can change the behaviour of the fork in every phase.

Lift the crown-stanchion unit on the arch-slider assembly.

2005 - TXC Air ECC

Assembling: Assembling the top right cap

Put the fork in the vice in vertical position, fixing it by the dropouts.

Check that O-ring is not damaged.
Using the 21mm socket spanner, tighten cap (2) to the recommended tightening torque (10 Nm ± 1).

Restore the correct air pressure (see settings).
Fit the protection cap (1).

Assembling: Assembling the top right cap

Put the fork in the vice in vertical position, fixing it by the dropouts.

Check that O-ring is not damaged.
Using the 21mm socket spanner, tighten cap (2) to the recommended tightening torque (10 Nm ± 1).

Restore the correct air pressure (see settings).

2005 - TXC Air ECC

Fit the protection cap (1).

Assembling: Assembling the top left cap

Screw the lock cap (2) down on the rod of the ECC cartridge without tightening being very careful not to
damage the O-ring.

Using the 10mm and 21mm spanners, tighten locknut (6) on cap (2) to the recommended tightening
torque (6 Nm ± 1).

With the 21mm socket spanner, tighten the lock cap (2) on the steering crown to the recommended
tightening torque (10 Nm ± 1).

Fit the ECC control knob (5) and screw (4).
Using a 2mm Allen wrench, tighten the knob fixing screw (4) to the recommended tightening torque (2
Nm ± 0.5).

2005 - TXC Air ECC

Setting: General rules for calibration

By carefully calibrating the damping system you can get the maximum performance out of the same.
This paragraph indicates the sequence of operations to perform to set up the Marzocchi forks correctly.
In order to find the best settings for you, you will need to try several times to understand where and how to make adjustments. When doing so,
please ride in an open area, free from traffic, obstacles and other hazards.
The optimal setting is influenced by the geometry of the frame of the mountain bike, the weight of the cyclist, the type of terrain the bike will be
used on and the type of obstacles you have to deal with, but also by subjective factors associated with your riding style; therefore it is impossible to
provide objective data on the desired settings.
Nevertheless by carefully following the instructions below you will soon be able to find the optimal setting for you.
The shock absorber must be calibrated simply by using one adjuster at a time, following the order explained, noting the operations and any result
step-by-step.
During setting don't force the adjusters beyond their limit of travel and don't exceed the max recommended air pressure.
To keep the pressure inside the fork’s legs, only use the special MARZOCCHI pump with pressure gauge.
The use of any other pump can compromise the inflating operation and cause malfunction or damage to the fork, resulting in an
accident, personal injury or death.

Once the correct setting has been found, we recommend noting the number of clicks or turns of the adjuster with respect to the "fully closed"
position (adjuster fully clockwise) for a faster re-setting of your fork in case of need.

Setting: SAG

SAG means the fork bottoming under the biker's weight.
How to measure the SAG:
Follow these simple steps to measure the SAG.
On the leg portion of the fork, measure the distance between the lower crown and the dust seal (see
Picture A). Note this value as “H1”.
While sitting on the bike, repeat the measurement (see picture B). Note this value as “H2".
SAG = H1 - H2
How to find the best percent SAG:
The best percent SAG is 15-20% for Cross-country and All Mountain forks and 25-30% for Freeride and
Downhill forks.
In order to calculate the best SAG for your own fork, you will need to make the following calculation:
SAG = T x S (T = total travel; S = suggested sinking percentage).

Setting: Positive air

Positive air is the elastic element of air damped forks.

Use the MARZOCCHI pump with pressure gauge to inflate the fork legs.
Using inadequate tools may lead to a wrong inflation and result in a malfunctioning or damage to the fork.
If you need to reduce the leg pressure, simply push the valve pin down with a pointed tool such as a small pin extractor.

Right fork leg:

To increase the pressure in the fork leg:
Remove the protection cap (B).
Tighten the threaded pump adapter on air valve (A).
Inflate till reaching the pressure you wish (see table).
Refit the protection cap (B).

2005 - TXC Air ECC

The pressure values in the table are given as a mere example and can be changed to meet the biker’s riding style and the track condition.

Setting: Rebound adjustment

Right fork leg:

With the rebound adjuster you can control the return speed of the fork after compression.
The right rebound speed setting makes the bike stable letting it follow the variations in the terrain and any obstacles.
If the fork setting is too reactive this will make the rear suspension instable and the mountain bike will have a tendency to snake. A too slow setting
however will cause problems when dealing with multiple obstacles where the suspension can't return to its fully extended position fast enough
between one obstacle and the next.

Using a small pin extractor, push the valve pin down to eliminate the right leg pressure.
With a 21mm socket spanner, unscrew and remove the protection cap (A).
Fit the hexagonal rod (B) supplied into the hole of the adjustment screw (C) in the stanchion tube.
Turning the adjustment screw counter-clockwise increases the hydraulic damping and the fork will be
slower during the rebound phase.
Turning the adjustment screw clockwise decreases the hydraulic damping and the fork will be more
reactive during the rebound phase.
Once the setting has been made, refit the protection cap and tighten it to the recommended torque (10
Nm ±1).
Restore the recommended air pressure.

Do not force the adjuster beyond its limit of travel.

Setting: ECC

The ECC cartridge lets you adjust the rebound damping “on the fly”.
Turning the adjuster changes the hydraulic configuration of the internal valves letting more or less oil flow through or stopping the oil flow in the
"LOCK OUT" position.
The adjustment knob has two positions:

Pos: LOCK
Turning the knob clockwise activates the ECC cartridge. In this position, the fork legs stay down when
hitting an obstacle; any other impact will lower the bike’s geometry further.
This position is recommended to face steep and demanding uphills.

2005 - TXC Air ECC

Pos: UNLOCK
Turning the knob counter-clockwise brings the fork back to normal function and deactivates the ECC
cartridge.

NEVER use the "LOCK" position when riding on steep downhills. Failure to comply with these instructions could cause your fork
not to react safely enough when hitting an obstacle, resulting in a loss of control of the bicycle, damage and serious or lethal
injury.

2005 - TXC Air ECC

Tightening torques

Air pressures

Positive air pressure

TXC Air ECC 60 - Oil levels

TXC Air ECC 80 - Oil levels

Components

Tightening torque (Nm)

Cap locknut

6±1

ECC knob locking screws

2±0,5

Fork leg top caps

10±1

Pumping element locking device

8±1

V-brake locking pins

9±1

User weight

Air pressure

kg.

lb.

bar

psi

55 - 70

121 - 154 2,00 - 2,75 2.900,00 - 3.987,50

70 - 80

154 - 176 2,40 - 3,10 3.480,00 - 4.495,00

80 - 95

176 - 209 2,90 - 3,80 4.205,00 - 5.510,00

95 - 110+ 209 - 242 3,60 - 4,50 5.220,00 - 6.525,00

Position

Oil type

Quantity (cc)

Right fork leg SAE 7,5 - 550013

100

Left fork leg

SAE 7,5 - 550013

100

Position

Oil type

Quantity (cc)

Right fork leg SAE 7,5 - 550013

100

Left fork leg

SAE 7,5 - 550013

100

2005 - TXC Air ECC

Diagnostics

Finding the problem

Finding the possible cause

Possible solutions proposed

Fork doesn't get full travel

Oil level too high

Check oil levels

Fork extends too quickly; harsh top-out after
impacts

Rebound damping is not enough

Replace the oil (SAE 7.5) with one of higher
viscosity index

Fork has too much sag

Oil is too fluid

Check oil levels

Fork is “sticky”; fork does not perform as new

Dirty sealing rings; fork needs to be
serviced

Renew all seals

Fork is too soft, but the sag is the one
recommended

Compression damping is not enough

Increase compression damping by changing oil
volumes

Fork is too soft, needs more than the maximum
preload

Oil is too fluid

Check oil levels

Heavy amount of oil on stanchions; oil dripping
down legs

Sealing rings damaged

Renew all seals

Heavy amount of oil on stanchions; oil dripping
down legs

The stanchion tubes could be damaged

Have the stanchions be checked

Loss of sensitivity

Old oil

Change the oil

Loss of sensitivity

Sliding bushes worn

Renew the sliding bushes

Oil leaking from the bottom of the fork leg

Bottom nut/screw loose

Tighten the nut or screw

Oil ring on stanchions

Sealing rings dirty

Renew all seals

2005 - TXC Air ECC

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